[INFO] fetching crate kcas 0.1.0...
[INFO] testing kcas-0.1.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate kcas 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate kcas 0.1.0
[INFO] finished tweaking crates.io crate kcas 0.1.0
[INFO] tweaked toml for crates.io crate kcas 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate kcas 0.1.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 74 packages to highest compatible versions
[INFO] [stderr]       Adding shuttle v0.6.1 (available: v0.9.7)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded shuttle v0.6.1
[INFO] [stderr]   Downloaded generator v0.8.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] d296000006a16425603c6ae1c8058f75298e1133970164998149badab31d497d
[INFO] running `Command { std: "docker" "start" "d296000006a16425603c6ae1c8058f75298e1133970164998149badab31d497d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d296000006a16425603c6ae1c8058f75298e1133970164998149badab31d497d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d296000006a16425603c6ae1c8058f75298e1133970164998149badab31d497d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d296000006a16425603c6ae1c8058f75298e1133970164998149badab31d497d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d296000006a16425603c6ae1c8058f75298e1133970164998149badab31d497d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling owo-colors v3.5.0
[INFO] [stderr]    Compiling assoc v0.1.3
[INFO] [stderr]    Compiling generator v0.7.5
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling rand_pcg v0.3.1
[INFO] [stderr]    Compiling rand v0.8.8
[INFO] [stderr]    Compiling displaydoc v0.2.7
[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling bitvec v1.1.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling shuttle v0.6.1
[INFO] [stderr]    Compiling kcas v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: proc-macro derive panicked
[INFO] [stdout]   --> src/err.rs:20:17
[INFO] [stdout]    |
[INFO] [stdout] 20 | #[derive(Debug, Display, Eq, PartialEq)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: Paragraph breaks in multi-line doc comments are disabled by default by displaydoc. Please consider using block doc comments (/** */) or adding the #[ignore_extra_doc_attributes] attribute to your type next to the derive
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `tracing`
[INFO] [stdout]   --> src/kcas/revert.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[cfg_attr(feature = "tracing", instrument(skip(next_function)))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `alloc`, `default`, and `std`
[INFO] [stdout]    = help: consider adding `tracing` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `tracing`
[INFO] [stdout]   --> src/kcas/revert.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | #[cfg_attr(feature = "tracing", instrument(skip(next_function)))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `alloc`, `default`, and `std`
[INFO] [stdout]    = help: consider adding `tracing` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `tracing`
[INFO] [stdout]    --> src/kcas/stage_change.rs:129:12
[INFO] [stdout]     |
[INFO] [stdout] 129 | #[cfg_attr(feature = "tracing", instrument(skip(next_function)))]
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, and `std`
[INFO] [stdout]     = help: consider adding `tracing` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]  --> src/sync.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 |     if #[cfg(loom)] {
[INFO] [stdout]   |              ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: expected names are: `docsrs`, `feature`, and `test` and 34 more
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `shuttle`
[INFO] [stdout]  --> src/sync.rs:8:21
[INFO] [stdout]   |
[INFO] [stdout] 8 |     } else if #[cfg(feature = "shuttle")] {
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected values for `feature` are: `alloc`, `default`, and `std`
[INFO] [stdout]   = help: consider adding `shuttle` as a feature in `Cargo.toml`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `shuttle`
[INFO] [stdout]    --> src/wrapper.rs:239:38
[INFO] [stdout]     |
[INFO] [stdout] 239 | #[cfg(all(test, feature = "std", not(feature = "shuttle"), not(loom)))]
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `alloc`, `default`, and `std`
[INFO] [stdout]     = help: consider adding `shuttle` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]    --> src/wrapper.rs:239:64
[INFO] [stdout]     |
[INFO] [stdout] 239 | #[cfg(all(test, feature = "std", not(feature = "shuttle"), not(loom)))]
[INFO] [stdout]     |                                                                ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `FatalError` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> src/err.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout]  5 | #[derive(Debug, Display, Eq, PartialEq)]
[INFO] [stdout]    |                 ------- in this derive macro expansion
[INFO] [stdout]  6 | pub enum Error {
[INFO] [stdout]  7 |     /// An unrecoverable error occurred and in-flight changes may not have been cleaned up: {0}
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `FatalError` cannot be formatted with the default formatter
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `std::fmt::Display` is not implemented for `FatalError`
[INFO] [stdout]   --> src/err.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub enum FatalError {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or `{:#?}` for pretty-print) instead
[INFO] [stdout]    = note: required for `&FatalError` to implement `std::fmt::Display`
[INFO] [stdout]    = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the derive macro `Display` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `FatalError` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> src/kcas/claim.rs:214:5
[INFO] [stdout]     |
[INFO] [stdout] 192 | #[derive(Debug, Display)]
[INFO] [stdout]     |                 ------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 214 |     /// Encountered a fatal error while helping another thread: {0}
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `FatalError` cannot be formatted with the default formatter
[INFO] [stdout]     |
[INFO] [stdout] help: the trait `std::fmt::Display` is not implemented for `FatalError`
[INFO] [stdout]    --> src/err.rs:21:1
[INFO] [stdout]     |
[INFO] [stdout]  21 | pub enum FatalError {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or `{:#?}` for pretty-print) instead
[INFO] [stdout]     = note: required for `&FatalError` to implement `std::fmt::Display`
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the derive macro `Display` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `FatalError` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> src/kcas/mod.rs:206:5
[INFO] [stdout]     |
[INFO] [stdout] 190 | #[derive(Debug, Display)]
[INFO] [stdout]     |                 ------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 206 |     /// Encountered a fatal error while helping another thread: {0}
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `FatalError` cannot be formatted with the default formatter
[INFO] [stdout]     |
[INFO] [stdout] help: the trait `std::fmt::Display` is not implemented for `FatalError`
[INFO] [stdout]    --> src/err.rs:21:1
[INFO] [stdout]     |
[INFO] [stdout]  21 | pub enum FatalError {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or `{:#?}` for pretty-print) instead
[INFO] [stdout]     = note: required for `&FatalError` to implement `std::fmt::Display`
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` which comes from the expansion of the derive macro `Display` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kcas` (lib) due to 4 previous errors; 7 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d296000006a16425603c6ae1c8058f75298e1133970164998149badab31d497d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d296000006a16425603c6ae1c8058f75298e1133970164998149badab31d497d", kill_on_drop: false }`
[INFO] [stdout] d296000006a16425603c6ae1c8058f75298e1133970164998149badab31d497d
